Question 13 In each case, find the x- and y-components of vector Ā;
(a) A = 5.0i- 6.3j
(b) A = 11.2i - 9.91j
(c) A = -15.0i + 22.4j
(d) Ā= 5.0B, where B = 4i - 6j

6–43 a food department is kept at 2128c by a refrigerator in an environment at 308c. the total heat gain to the food department is estimated to be 3300 kj/h and the heat rejection in the condenser is 4800 kj/h. determine the power input to the compressor, in kw and the cop of the refrigerator.

It's a snowy day and you're pulling a friend along a level road on a sled. you've both been taking physics, so she asks what you think the coefficient of friction between the sled and the snow is. you've been walking at a steady 1.5m/s, and the rope pulls up on the sled at a 32 ∘ angle. you estimate that the mass of the sled, with your friend on it, is 65 kg and that you're pulling with a force of 80 n .

Find the mass by adding the numbers from the three sliders